We have an over-zealous plans reviewer worried about the in-building riser 
sweep we use to transition from UG to OH.   We’ve spent 2 man-hours to account 
for a .03 PSI pressure differential.  But righteousness has prevailed and we 
can add a node and document the sweep now, so our plans reviewer should be able 
to sleep for the rest of the week.   I’m embarrassed at our sloppiness, using 
140 for 10 critical feet of pipe and whatnot.

This is why Chapter 17 of my great novel is tentatively titled “Why Stevie 
Drinks”.

SML

From: Sprinklerforum [mailto:[email protected]] On 
Behalf Of Brad Casterline
Sent: Monday, August 01, 2016 3:26 PM
To: [email protected]
Subject: Re: C-factor for stainless steel


Just curious about the application Steve, if it's not too proprietary?
I was going to guess foam concentrate piping but I think that requires Darcy 
instead of Hazen whereby you would need the friction factor instead of the 
c-factor...
So, uhhh????

Brad
On Aug 1, 2016 5:05 PM, "[email protected]<mailto:[email protected]>" 
<[email protected]<mailto:[email protected]>> wrote:
Don't feel bad, I went through the exact same exercise last October. LOL. Right 
there the whole time but read over it a half dozen times until someone on this 
form was kind enough to point it out to me.


BK

----- Reply message -----
From: "Mark Phillips" 
<[email protected]<mailto:[email protected]>>
To: 
"[email protected]<mailto:[email protected]>"
 
<[email protected]<mailto:[email protected]>>
Subject: C-factor for stainless steel
Date: Mon, Aug 1, 2016 3:51 PM


It's a Monday for sure for me



Sent from my Verizon 4G LTE Droid

On Aug 1, 2016 5:49 PM, Steve Leyton 
<[email protected]<mailto:[email protected]>> wrote:

Oh, no sh#t.   Next to copper, blipped right over it.



SML



-----Original Message-----

From: Sprinklerforum 
[mailto:[email protected]<mailto:[email protected]>]
 On Behalf Of Bob

Sent: Monday, August 01, 2016 1:38 PM

To: 
[email protected]<mailto:[email protected]>

Subject: RE: C-factor for stainless steel



NFPA 13, 2013 ed. Table 23.4.4.7.1, C Value 150.



Thank you,



Bob Knight, CET III

208-318-3057<tel:208-318-3057>





-----Original Message-----

From: Sprinklerforum 
[mailto:[email protected]<mailto:[email protected]>]

On Behalf Of Steve Leyton

Sent: Monday, August 01, 2016 2:10 PM

To: 
[email protected]<mailto:[email protected]>

Subject: C-factor for stainless steel



Does anyone know the C-factor of stainless steel and/or have a reference to a 
materials standard that substantiates that value?







Thanks,



Steve L.





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